AD8314's bandgap reference

Hi,

I think the bandgap reference voltage typ is 1.125V. Can you tell me the minimum and maximum values?

I would like to know the effect on the V_DN error when calculating with V_UP and the bandgap reference voltage.

Best Regards,

Parents
  • +1
    •  Analog Employees 
    on Mar 25, 2021 11:31 PM

    Hi nrsk,

    There's no direct spec. for the bandgap voltage, however datasheet page 3 INVERTED OUTPUT Maximum Output Voltage has min and max specifications that will essentially impose a limit on the bandgap output voltage. Min and max are 2.1 and 2.5V respectively, so the bandgap must be at least 1.05V min to 1.25V max to meet that spec. Hope that helps answer your question.   -Bruce H. 

Reply
  • +1
    •  Analog Employees 
    on Mar 25, 2021 11:31 PM

    Hi nrsk,

    There's no direct spec. for the bandgap voltage, however datasheet page 3 INVERTED OUTPUT Maximum Output Voltage has min and max specifications that will essentially impose a limit on the bandgap output voltage. Min and max are 2.1 and 2.5V respectively, so the bandgap must be at least 1.05V min to 1.25V max to meet that spec. Hope that helps answer your question.   -Bruce H. 

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